CN103157783B - A kind of building method of bottom of steel ladle - Google Patents
A kind of building method of bottom of steel ladle Download PDFInfo
- Publication number
- CN103157783B CN103157783B CN201110427155.XA CN201110427155A CN103157783B CN 103157783 B CN103157783 B CN 103157783B CN 201110427155 A CN201110427155 A CN 201110427155A CN 103157783 B CN103157783 B CN 103157783B
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- steel ladle
- refractory brick
- building method
- laid
- ladle
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Abstract
The invention discloses a kind of building method of bottom of steel ladle, this building method uses bottom of steel ladle described in laying fireproof bricks, by described refractory brick by rows build by laying bricks or stones until cover whole described bottom of steel ladle, then castable is used to pour into a mould described bottom of steel ladle, wherein, when using bottom of steel ladle described in described laying fireproof bricks, a part of described refractory brick side is built, refractory brick laid on end described in another part.Wherein, the refractory brick of laid on end plays the effect of serving as " skeleton " and connection flame retardant coating and the cast bed of material in the cast bed of material, the intensity of the cast bed of material is improved, and the cast bed of material is combined with fire brick layer better, therefore, compared with being built whole for refractory brick side with building method at the bottom of traditional bag, when using the bottom of steel ladle castable of equal material, the life-span of the bottom of steel ladle cast bed of material using building method of the present invention to build by laying bricks or stones is longer.
Description
Technical field
The present invention relates to a kind of building method of bottom of steel ladle.
Background technology
Ladle is used for accepting molten steel and pouring practice before the open hearth of smelting iron and steel, electric furnace or converter, be subject to chemical erosion and the mechanical erosion of molten steel and slag under high temperature for a long time, ladle is easily damaged, service life is short, and the building method of ladle there is material impact the service life to ladle.Wherein, as the part that ladle is built by laying bricks or stones, bottom of steel ladle build the service life that effect directly affects ladle by laying bricks or stones.Traditional method for constructing bottom of steel ladle is all first build in bottom of steel ladle by the refractory brick side of cuboid; form the fire brick layer of surfacing; then also the thickening bag end, forms the cast bed of material be positioned on fire brick layer to adopt castable to fill refractory brick gap; the bottom of steel ladle of building by laying bricks or stones like this has double-layer structure substantially; namely more smooth fire brick layer and the cast bed of material; this structure make the castable of the cast bed of material cannot well and fire brick layer combine, often to collapse material etc. and cause ladle to stop repairing because of the cast bed of material.
Summary of the invention
The object of this invention is to provide a kind of building method of bottom of steel ladle, when using the material cast bottom of steel ladle of identical and equivalent amount, the cast bed of material of the bottom of steel ladle using the method to build by laying bricks or stones extends service life.
The invention provides a kind of building method of bottom of steel ladle, this building method uses bottom of steel ladle described in laying fireproof bricks, by described refractory brick by rows build by laying bricks or stones until cover whole described bottom of steel ladle, then castable is used to pour into a mould described bottom of steel ladle, and, when using bottom of steel ladle described in described laying fireproof bricks, wherein a part of described refractory brick side is built, refractory brick laid on end described in another part.
Preferably, be separated by setting at the refractory brick of the described laid on end of same row, and the refractory brick of the described laid on end of adjacent row offsets one from another.
Preferably, in described bottom of steel ladle, the refractory brick of the described side block of equal amount of being separated by between the refractory brick of the described laid on end in the described refractory brick of same row.
Preferably, wherein, in described bottom of steel ladle, described in bag end molten steel impact zone, the density of the refractory brick of laid on end is larger.
Preferably, the refractory brick of described laid on end is more than or equal to 25 pieces.
Preferably, described refractory brick is aluminium-magnesia carbon brick.
Preferably, described castable is spinel pouring material.
The present invention is identical with now conventional method for constructing bottom of steel ladle step, also be first use laying fireproof bricks bottom of steel ladle, but the present invention is when building refractory brick by laying bricks or stones, a part of refractory brick side is built, and another part refractory brick laid on end, and then castable is used to pour into a mould bottom of steel ladle.Wherein, the refractory brick of laid on end plays the effect of serving as " skeleton " and connection fire brick layer and the cast bed of material in the cast bed of material, the intensity of the cast bed of material is improved, and the cast bed of material is combined with fire brick layer better, therefore, compared with whole for refractory brick side being built with building method at the bottom of traditional bag, when using the bottom of steel ladle castable of identical material and equivalent amount, the life-span of the bottom of steel ladle cast bed of material using method of the present invention to build by laying bricks or stones is longer, thus decreases the consumption of number of times that ladle stops repairing and ladle lining.
Other features and advantages of the present invention are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for description, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the ladle side-looking structural representation that the method for constructing bottom of steel ladle of display use the preferred embodiment of the present invention is built by laying bricks or stones;
Fig. 2 is the plan structure schematic diagram of the fire brick layer of the bottom of steel ladle of building by laying bricks or stones according to the method for constructing bottom of steel ladle of the preferred embodiment of the present invention.
Description of reference numerals
Refractory brick is built in 1 laid on end refractory brick 2 side
The 3 cast bed of materials
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
Fig. 1 is the ladle side-looking structural representation that the method for constructing bottom of steel ladle of display use the preferred embodiment of the present invention is built by laying bricks or stones; Fig. 2 is the plan structure schematic diagram of the fire brick layer of the bottom of steel ladle of building by laying bricks or stones according to the method for constructing bottom of steel ladle of the preferred embodiment of the present invention, and wherein the refractory brick of dash area is the refractory brick of laid on end.
As depicted in figs. 1 and 2, according to the building method of bottom of steel ladle of the present invention be also first by refractory brick by rows build by laying bricks or stones at bottom of steel ladle until cover whole bottom of steel ladle, then castable cast bottom of steel ladle is used, such as, refractory brick is rectangular shape, there is length and width and height, use in the present embodiment during laying fireproof bricks bottom of steel ladle and a part of refractory brick side is built, even if the height of this refractory brick is perpendicular to bottom of steel ladle, and another part refractory brick laid on end, even if the length of this refractory brick is perpendicular to bottom of steel ladle.
Wherein, the reasonable quantity of the refractory brick of laid on end increases the intensity that can improve bag bottom pour mold material feeding layer, and such as, as a kind of preferred embodiment, the refractory brick of laid on end is more than or equal to 25 pieces.
In addition, as preferred embodiment, the refractory brick of the laid on end same row can be made to be separated by setting, and the refractory brick of laid on end offsets one from another in adjacent row, and more preferably, can also make the refractory brick that the side being separated by equal amount between the refractory brick of the laid on end in same row's refractory brick is built, this set form can reduce to a certain extent because of the refractory brick stress that skewness causes in the cast bed of material.
And, owing to pouring in the process of ladle at molten steel, molten steel can produce stronger bump effect to molten steel impact zone at the bottom of the bag of ladle, therefore wrap end impact zone easily to damage, the security of the major accidents such as bag and then impact production even can be worn time serious, the ability of the anti-molten steel impact of bag end impact zone directly affects the service life of ladle, therefore, as a kind of preferred embodiment, the density of the refractory brick of laid on end in suitable increase molten steel impact zone, to improve the ability that the anti-molten steel in ladle bottom impact area of steel ladle impacts, thus extend the service life of ladle.
In addition, the refractory brick adopted in bag end building process and castable can be various refractory material well known in the art, such as, and aluminium-magnesia carbon brick and spinel pouring material.
The building method of bottom of steel ladle of the present invention is implemented at Pan Gang group vanadium extraction steel mill: such as climb No. G04, steel vanadium extraction steel mill ladle (ladle internal diameter end opening 2.95m, upper internal diameter 3.44m, high 3.76m in ladle) adopt building method according to the present invention to build the bag end by laying bricks or stones, adopt at the bottom of castable pouring ladle after 27 pieces, bag end laid on end refractory brick, the service life of the bottom of steel ladle cast bed of material reaches 62 times; Such as climb again No. G16, steel vanadium extraction steel mill ladle (ladle internal diameter end opening 2.94m, upper internal diameter 3.45m, high 3.72m in ladle), building method according to the present invention is adopted to build the bag end by laying bricks or stones, adopt at the bottom of castable pouring ladle after 25 pieces, bag end laid on end refractory brick, the service life of the bottom of steel ladle cast bed of material reaches 58 times.
In the bottom of steel ladle adopting building method of the present invention to build by laying bricks or stones, the refractory brick of laid on end plays the effect of serving as " skeleton " and connection fire brick layer and the cast bed of material in the cast bed of material, the intensity of the cast bed of material is improved, and the cast bed of material is combined with fire brick layer better.Therefore, compared with whole for refractory brick side is built in building method at the bottom of conventional bag, when using the bottom of steel ladle castable of equal material, the life of the bottom of steel ladle cast bed of material, thus the consumption decreasing number of times that ladle stops repairing and ladle lining.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.In addition, each the concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (7)
1. the building method of a bottom of steel ladle, this building method uses bottom of steel ladle described in laying fireproof bricks, by described refractory brick by rows build by laying bricks or stones until cover whole described bottom of steel ladle, then castable is used to pour into a mould described bottom of steel ladle, it is characterized in that, when using bottom of steel ladle described in described laying fireproof bricks, wherein a part of described refractory brick side is built, refractory brick laid on end described in another part.
2. the building method of bottom of steel ladle according to claim 1, wherein, be separated by setting at the refractory brick of the described laid on end of same row, and the refractory brick of the described laid on end of adjacent row offsets one from another.
3. the building method of bottom of steel ladle according to claim 2, wherein, in described bottom of steel ladle, the refractory brick of the described side block of equal amount of being separated by between the refractory brick of the described laid on end in the described refractory brick of same row.
4., according to the building method of the bottom of steel ladle in claim 1-3 described in any one, wherein, in described bottom of steel ladle, described in bag end molten steel impact zone, the density of the refractory brick of laid on end is larger.
5. the building method of bottom of steel ladle according to claim 4, wherein, the refractory brick of described laid on end is more than or equal to 25 pieces.
6. the building method of bottom of steel ladle according to claim 1, wherein, described refractory brick is aluminium-magnesia carbon brick.
7. the building method of bottom of steel ladle according to claim 1, wherein, described castable is spinel pouring material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110427155.XA CN103157783B (en) | 2011-12-19 | 2011-12-19 | A kind of building method of bottom of steel ladle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110427155.XA CN103157783B (en) | 2011-12-19 | 2011-12-19 | A kind of building method of bottom of steel ladle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103157783A CN103157783A (en) | 2013-06-19 |
| CN103157783B true CN103157783B (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110427155.XA Expired - Fee Related CN103157783B (en) | 2011-12-19 | 2011-12-19 | A kind of building method of bottom of steel ladle |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103482992A (en) * | 2013-09-12 | 2014-01-01 | 唐山市国亮特殊耐火材料有限公司 | Fireproof material for steel ladle bottom and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05329620A (en) * | 1992-05-29 | 1993-12-14 | Harima Ceramic Co Ltd | Lining structure for molten metal vessel |
| CN101117851A (en) * | 2007-06-28 | 2008-02-06 | 武汉钢铁(集团)公司 | Ladle bottom construction method |
| CN101125365A (en) * | 2007-10-16 | 2008-02-20 | 鞍钢股份有限公司 | Steel ladle integrated masonry method |
| CN201264085Y (en) * | 2008-09-26 | 2009-07-01 | 鞍钢股份有限公司 | Molten steel tank bottom working lining brick building structure |
| CN101683690A (en) * | 2008-09-26 | 2010-03-31 | 鞍钢股份有限公司 | Method for constructing bottom of ladle |
-
2011
- 2011-12-19 CN CN201110427155.XA patent/CN103157783B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05329620A (en) * | 1992-05-29 | 1993-12-14 | Harima Ceramic Co Ltd | Lining structure for molten metal vessel |
| CN101117851A (en) * | 2007-06-28 | 2008-02-06 | 武汉钢铁(集团)公司 | Ladle bottom construction method |
| CN101125365A (en) * | 2007-10-16 | 2008-02-20 | 鞍钢股份有限公司 | Steel ladle integrated masonry method |
| CN201264085Y (en) * | 2008-09-26 | 2009-07-01 | 鞍钢股份有限公司 | Molten steel tank bottom working lining brick building structure |
| CN101683690A (en) * | 2008-09-26 | 2010-03-31 | 鞍钢股份有限公司 | Method for constructing bottom of ladle |
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| Publication number | Publication date |
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| CN103157783A (en) | 2013-06-19 |
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